magnesium parts surface Anti-rust treatment

Magnesium parts are easily oxidized by air after CNC milling, so how should anti-rust treatment be carried out?



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magnesium Parts should be neatly arranged in the designated storage location and are not allowed to touch the ground;

Moisture-proof measures should be taken in the place where parts are stored;UfyYoYike manufacturer company
 UfyYoYike manufacturer company

Wipe the surface of the parts coated with anti-rust oil with a cloth dipped in gasoline, and dry them before machining; all chemical treatment processes, that is, unsealing, oxidation and painting processes, should be recorded on the process card;UfyYoYike manufacturer company
 UfyYoYike manufacturer company

After the parts are unpacked, they shall not be put into machining for more than 15 days and nights;UfyYoYike manufacturer company

After the parts are scribed, the oxide film will be destroyed, so the scribing should be done before the final oxidation;UfyYoYike manufacturer company
 UfyYoYike manufacturer company

Dry cutting is used, and lubricating oil and coolant shall not be used for cooling. Oil lubrication and cooling are allowed when machining threads;UfyYoYike manufacturer company
 UfyYoYike manufacturer company

All machining operations should be carried out before the final oxidation, in special cases, individual machining after the final oxidation is allowed. All sharp corners of parts should be rounded for best protection;UfyYoYike manufacturer company
 UfyYoYike manufacturer company

The oxidation treatment is carried out every 10 days and nights starting from the mechanical machining to remove the oxide film.UfyYoYike manufacturer company
UfyYoYike manufacturer company
magnesium parts Anti-rust treatment  magnesium alloy productsUfyYoYike manufacturer company
UfyYoYike manufacturer company
UfyYoYike manufacturer company
(1) Surface pre-cleaning (pre-treatment): magnesium alloy products are easily mixed with oxides, lubricants, greases and other pollutants on the surface of magnesium alloy products through processes such as die-casting or forging. Therefore, the purpose of pre-treatment is to clean the surface of magnesium alloys to facilitate subsequent deal with.UfyYoYike manufacturer company
UfyYoYike manufacturer company
There are two main cleaning methods:UfyYoYike manufacturer company
UfyYoYike manufacturer company
①Mechanical cleaning to achieve the required surface roughness by different grinding, rough polishing, dry and wet abrasive jetting, etc.;UfyYoYike manufacturer company
UfyYoYike manufacturer company
②Chemical cleaning, solvent cleaning, alkali cleaning and acid cleaning, resulting in different surface states.UfyYoYike manufacturer company
UfyYoYike manufacturer company
(2) Passivation treatment: Passivation treatment is to use the non-electrolytic chemical reaction between the metal surface and the solution to produce an insoluble and inorganic salt surface film. In addition to improving the corrosion resistance, the passivation film can also be used as a coating. base to increase the adhesion of the coatingUfyYoYike manufacturer company
UfyYoYike manufacturer company
UfyYoYike manufacturer company
(3) Anodizing treatment: Anodizing treatment can produce an anodized film, which greatly improves the corrosion resistance; it produces a metallic luster texture and has a beautiful decorative effect. If it can be well processed in the subsequent sealing, the resulting dense oxide layer can improve the surface hardness and corrosion resistance.UfyYoYike manufacturer company
UfyYoYike manufacturer company
UfyYoYike manufacturer company
(4) Electroplating treatment: The surface color and appearance of magnesium alloy materials can be changed by electroplating technology to achieve the required functional and decorative purposes. Generally, when considering improving the adhesion of the electroplating layer, several pre-treatments such as zinc replacement, copper replacement, electroless nickel plating, etc. will be carried out before the electroplating treatment.UfyYoYike manufacturer company
UfyYoYike manufacturer company
UfyYoYike manufacturer company
(5) Metal cladding: The metal cladding can further prevent corrosion and increase the mechanical properties and hardness of the surface, so as to achieve the purpose of finally choosing a lightweight magnesium alloy under special environmental conditions.UfyYoYike manufacturer company





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